Reaktion #640219

Reaktionsgleichung

water

2,8-dibromodibenzothiophene

hydrogen peroxide

acetic acid

→

title compound

Ausbeute 60.0%

2,8-Dibromo-dibenzothiophene 5,5-dioxide

Ausbeute 60.0%

Reaktionsbedingungen

Aufarbeitung

1. 1
   TemperaturThe solution was heated
2. 2
   Temperaturat reflux overnight (16 h)
3. 3
   Filtrationthe resulting solid was collected by filtration
4. 4
   Waschenwashed with excess water

Vorschrift

To a solution of 2,8-dibromodibenzothiophene (2.50 g, 7.4 mmol; TCI-US) in acetic acid (20 mL; EM Science) was added 30% hydrogen peroxide (10 mL; JT Baker). The solution was heated at reflux overnight (16 h), then cooled to room temperature, 25 mL of water added and the resulting solid was collected by filtration, washed with excess water to afford the title compound (1.65 g, 4.4 mmol, 60% yield). MS (DCI/NH3): m/z 392 (M+18)+.

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